Facebook status is a way people communicate their thoughts, ideas and feelings with the rest of the world. Facebook is a highly interactive social networking medium which allows people to express their own opinions and viewpoints about the latest national and international happenings. People love to be vocal about their thoughts and opinions. Facebook status is a good medium and the apt platform to give vent to your thoughts. But before going public, you should know what limits you are not expected to cross while posting a Facebook status.
Facebook status or for that matter, any other way to voice your opinion should not be used for slandering others or for jeopardizing the integrity of your nation/country or a person in particular. Don't use Facebook status to belittle or berate someone publicly. You can use other means of expressing your anger on someone who gets unreasonable with you or wrongs you.